Thread: Chemical intake clean, who's done one / opinions? 2010 D4 2.7L

Have a look at YouTube for the range of videos on “intake manifold cleaning”.

I’ve used Revive, which is featured in one of the above videos. I like the product but it doesn’t spring clean the manifold. It might reduce the amount of gunk in there but don’t expect it to be completely clean.

A mate with a Triton Ute had his manifold removed and cleaned. It didn’t feel any different.

So try an induction cleaner like MolyLiqui or Revive if you want. It will probably benefit other areas of your motor more. But unless there is a problem I’d agree with your mechanic. No need to remove it.

Disabling the EGR will stop the continued build up of soot at least.

I just took the plastic inlet manifold off and cleaned it by hand - was a tough dirty job - very sticky and i doubt any product just squirted down there would work particularly well.

Garry

Originally Posted by garrycol

I just took the plastic inlet manifold off and cleaned it by hand - was a tough dirty job - very sticky and i doubt any product just squirted down there would work particularly well.

Garry

Any before and after pics? Any noticeable difference behind the wheel?

It is not a big job to remove the Y intake manifold to it clean out by hand , as it full of sticky thick black tar and sludge i very much doubt that is any other way of cleaning it . As for taking the rest of the intake manifold off probably better left alone as most of the gunk is in the Y piece at the front .

Google will find a vidio of taking off the intake manifold .

Let alone taking off the manifold takes about ten hours per side and costs a lot because all fuel lines are supposed to be replaced and injector kits used etc.

Originally Posted by rar110

Any before and after pics? Any noticeable difference behind the wheel?

No and no - was done 7 years ago - but make sure you wear gloves.

Had all the manifolds off my M57 from my 03 RR at one point and spent a lot of time cleaning all the gunk out of the plastic intake manifold. What wasn’t sticky gunk was like concrete - as Garry said, it’s doubtful anything other than manual removal would work IMO.

Did it make a difference? No - probably made me feel better it wasn’t in there but the engine didn’t seem to care too much that’s for sure.

Cleaned both manifolds, (as much as possible) throttle body and plenum by hand when I changed out the coolant outlet.

Didn't notice any difference engine wise but I'm glad I did it for my own peace of mind.

Most of the gunk was in the Y shaped part of the throttle body, EGR outlets and intake part of the manifolds, readily accessible by hand.

Not sure what an aerosol cleaner would do, but don't believe it would harm the engine.